大扁杏嫁接愈合过程中几种生化物质含量的变化  

The content changes of several biochemistry substances of grafted armeniaca surviving

作　　者：曲云峰[1] 赵忠[2] 张小鹏[2] 

机构地区：[1]西北农林科技大学学生处,陕西杨凌712100 [2]西北农林科技大学林学院,陕西杨凌712100

出　　处：《西北农林科技大学学报（自然科学版）》2008年第5期73-78,共6页Journal of Northwest A&F University(Natural Science Edition)

基　　金：国家林业局科学研究与示范项目(2003-030-L30)

摘　　要：【目的】了解大扁杏嫁接愈合过程中几种生化物质含量的变化,为提高大扁杏嫁接成活率提供理论依据。【方法】以2年生山杏实生苗为砧木,以大扁杏品种"龙王帽"1年生枝条为接穗,通过带木质部芽接试验,对春季和夏季大扁杏嫁接愈合过程中几种生化物质含量的变化进行了研究。【结果】嫁接愈合过程中,嫁接苗形成层水分含量与2年生山杏实生苗(对照苗)变化趋势基本一致,嫁接苗水分含量略低于对照苗,但二者相差不大;嫁接苗形成层的可溶性蛋白含量在愈合过程中始终高于对照苗;愈合前期嫁接苗形成层木质素含量高于对照苗,后期低于对照苗;嫁接苗多酚含量在愈合期间高于对照苗,且嫁接苗与对照苗形成层多酚含量变化趋势基本一致;春季芽接成活率为85.6%,夏季芽接成活率为92.3%。【结论】形成层高含量的可溶性蛋白、对愈合起促进作用的多酚及前期高含量的木质素,均有利于嫁接体的成活;在嫁接技术成熟的前提下,水分含量不是影响嫁接成活的重要因素。[Objective] This study was to find out the influence of biochemistry substances changes in surviving process after grafting. [Method] Two Armeniaca varieties,i, e. Prunus sibirical and Prunus armeniaca,were employed as the plant materials. Two-year-old Prunus sibirical coming from seeds were treated as rootstock （CK）. Full bud with xylem of one-year trees of Prunus arrneniaca （Long wangmao） were selected to graft on Prunus sibirical （grafted seedling）. The change of several biochemistry substances contents in formation of callus after grafting in spring and summer were studied. [Result] The trend of content change of cambium＇s water of grafted seedling was basically the same in two years Prunus sibirial icontrol seeding abbreviated as CK） and the grafted seedling, the latter was just little lower than control seedling. There were no or little difference in the content of water between grafted seedling and CK. The content of cambium of soluble protein of grafted seedling was higher than that of CK during the whole cicatrisation. The content of lignin of grafted seedling in cambium was higher than that of CK in prophase of cicatrisation and lower than that of CK in anaphase. The hydroxybenzene content of cambium of grafted seedling was higher than that of the CK during the whole course of cicatrisation. And the trend of change was similar, the surviving ratio of the grafted seedling in spring was 85.6% and in summer was 92.3%. [Conclusion] High quantity of soluble protein,stimulative hydroxybenzene for cicatrisation and lignin in prophase would be good for the survival of grafted seedlings. In the precondition of good graft technic, the quantity of water in cambium was not the important factor of graft surviving.

关 键 词：大扁杏 嫁接 愈合 生化物质含量 

分 类 号：S662.204.3[农业科学—果树学]